Blanton Lake South Lobe
Pasco County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Blanton Lake South Lobe. Here is what has been measured.
- Hypereutrophic
- 38 ft max depth
- Limited data
Blanton Lake South Lobe in Pasco County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2 ft visibility. Phosphorus: 140 µg/L.
Blanton Lake South Lobe is a highly nutrient-loaded hypereutrophic lake in Pasco County, Florida with an estimated average depth of about 38 feet. Overall water quality is improving over recent sampling years. Compared to the 14 other monitored lakes in Pasco County, Blanton Lake South Lobe ranks #15 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-04-03. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Blanton Lake South Lobe is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Blanton Lake South Lobe
These are the measurements Florida DEP publishes for Blanton Lake South Lobe, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2 ft of visibility. Phosphorus 140 µg/L. TSI 71.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 140µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 71 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Blanton Lake South Lobe
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Blanton Lake South Lobe typically sits around 75°F at the surface in October. Summer average is about 89°F. Usually warmest in Jul (about 91°F) and coldest in Jan (about 61°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (61°F) to its warmest (91°F).
Typical surface water temperature by month, from 63 field readings (2010–2025) via the EPA Water Quality Portal. See the full Blanton Lake South Lobe water temperature breakdown →
Lake Details
Max depth
~38 ft est.
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Florida has not published bathymetry for Blanton Lake South Lobe.
Lake Size & Watershed
Watershed (drainage) area
3 sq mi
HydroLAKES / HydroSHEDS
Surface area
49 acres
HydroLAKES / HydroSHEDS
Shoreline
1.3 mi
HydroLAKES / HydroSHEDS
Elevation
82 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Stays via Stay22
Stays near Blanton Lake South Lobe
Compare lakeside cabins, hotels, and vacation rentals near Blanton Lake South Lobe in Pasco County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Blanton Lake South Lobe are listed below.
Top-rated places to stay near Blanton Lake South Lobe
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Fishing Blanton Lake South Lobe
Water quality readings over time
2 seasons of samples on record (2023–2024). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Phosphorus
Improving-5 µg/L/yr2 years
Nearby Lakes in Pasco County
Frequently asked questions about Blanton Lake South Lobe
Where is Blanton Lake South Lobe?
- Blanton Lake South Lobe is a lake in Pasco County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Blanton Lake South Lobe?
- Blanton Lake South Lobe in Pasco County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2 ft visibility. Phosphorus: 140 µg/L.
Is Blanton Lake South Lobe safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Blanton Lake South Lobe?
- Blanton Lake South Lobe typically sits around 75°F at the surface in October, from 63 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
How deep is Blanton Lake South Lobe?
- No published bathymetric survey covers Blanton Lake South Lobe, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 38 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
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Where this data comes from
66 measurements from 1 monitoring station, 2023–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples66 samples · 2023–2025
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)